Allow support for scaleUtc for xScaleType and yScaleType #231
Description
In our app, we had previously used scaleUtc, in our charts. This allowed for tests run on CI to not care about time zones when parsing/reading dates. Reactochart doesn't have an option to use this scale type, only scaleTime, which is set to your local time zone.
It's be great to have a different scaleType we can pass in the generate scales using UTC dates